common faults and handling methods of integrated license plate recognition machine < / a >

1. Image output fails

In this case, the following checks should be carried out first: whether the camera has image data output; Whether the lens drive line is broken or connected correctly. Whether the connecting line between the camera and the control board is connected correctly. Identify whether the system has image output, check whether the video line is connected to the analog video input interface of the recognizer, etc

2. Passing display "no license plate"

Most of these failures are due to image input. First, check whether the license plate recognition camera is normal, whether the image is clear and whether the position has moved. For the lane separated from the surveillance camera and license plate recognition camera, connect the video head connected to the recognition instrument to the character superimposer, observe whether the image is normal, and adjust the camera

3. The vehicle passes through the capture coil, and the software has no response

The main reason for this kind of failure is that the industrial computer does not receive the trigger signal, and the license plate recognition host and charging software do not work. For such faults, please refer to the maintenance process of coil and capture detector